Re: [Boost-Users] shared_ptr swap problems

From: Peter Dimov (pdimov_at_[hidden])
Date: 2002-08-26 09:30:07

From: "Olaf Petzold" <yg-boost-users_at_[hidden]>
> 
> struct C : public BaseC {
>   C() : b( new B("C::b") ) { }
>   void set(const boost::shared_ptr<A>& ptr) {
>     b.swap( boost::shared_static_cast<B>( ptr ) ); // L21
>   }
>   void print() { std::cout << b->name << std::endl; }
>   boost::shared_ptr<B> b;
> };

Why not simply

b = boost::shared_static_cast<B>( ptr );

or

b = boost::shared_polymorphic_cast<B>( ptr );

?